Conquer the Sierra Buttes.

The Lost Sierra Endurance Race, scheduled for July 26, 2025, in Downieville, California, offers an exhilarating challenge for runners with three distance options: 100K, 50K, and 25K. Participants will navigate scenic trails through the Sierra Buttes, experiencing breathtaking views and diverse terrains. The 100K race features an out-and-back course, while the 50K is a point-to-point journey from Plumas-Eureka State Park to Downieville.

The 25K loop is designed for those seeking a less strenuous yet beautiful experience. Runners can enjoy a post-race BBQ and various activities, making it a memorable weekend for all. Visit the organization's website for the most recent information.